I've just heard that WSPR may not run well on slower PCs with Windows 2000. My experience seems to bear this out - I get good decodes on a 3GHz machine, but bad or double decodes with a 500MHz machine. The soundcards and the overall PC setups are essentially the same.
I wonder if this also applies to Windows XP. If not, why not ?
What specific features of W2000 are causing these problems ?

John
G4FDD